If 2015 was anything to go by, this year, it's all about pop singer Halsey. From her badass beauty looks to her modern-day rise to fame (like collaborator Justin Bieber, she started out on YouTube), the 21-year-old is poised to make an even bigger name for herself with the rest of her Badlands world tour. But even before we were singing along to her hit, "New Americana," Halsey has been serving up beauty inspo for a while now. Whether through her endless rainbow hair switch-ups or her unexpected lipstick choices (which surely helped land her a spot as one of the faces of MAC's new #MACFutureFoward line and her very own blue lipstick), Halsey makes the way-out-there look way cool. Need further proof? We scoured Halsey's Instagram for the best hair colors, cuts, and styles she's showed off so far.

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When she was a blonde babe who also happened to be rocking the most perfect festival outfit you could ever dream up.

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This gorgeous lavender shade that was just the beginning of the neon bright and washed out pastel looks Halsey had ahead of her.

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That time Halsey wore the half-up bun before it became a major trend – and, in an aquamarine color because she's just that cool.

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When she went a '90s era Gwen Stefani cotton candy pink, complete with tattoo choker necklace and overalls.

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The bubblegum shade lasted about a week before she traded it in for a silvery gray color with a pastel lip to match.

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Back to the "normals" as Halsey called it with waist-length wavy brown hair.

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But the rainbow locks came back hitting hard with this neon blue and yellow bob.

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Halsey went all blue everything, combining her go-to hair color with a matching electric blue lip.

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Keeping the bright blue shade at the top, Halsey's pixie cut was buzzed on the sides with a pop of pink color.

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With the pixie style grown out a bit, Halsey showed off her natural curly texture in a platinum blonde color.

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Back to the buzzed pixie in a dark brown shade with her new MAC lipstick to top off her latest enviable look.